And they're awfully simple because, all I can do now, is decide whether to execute some piece of code or another.

它们之所以太简单的原因是：,现在我能做的，就是,决定执行一块代码或者执行另外一块。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now let's talk about some simple observations on isothermal gas expansions.

接下来我们讨论几条,关于绝热膨胀的性质。

麻省理工公开课 - 热力学与动力学课程节选